Find the center and the radius of the circle.x2 + y2 - 10x + 8y = -25
A. (5, -3); r = 4
B. (5, -4); r = 4
C. (5, -4); r = 6
D. (8, -4); r = 4
Answer: B
Mathematics
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A. Real number B. Integer, rational number, real number C. Rational number, real number D. Rational number
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Solve the problem. Round to the nearest cent unless otherwise noted.Find the amount of markup of an item which cost a store $151. The store has a 25% markup on cost.
A. $604.01 B. $188.75 C. $120.80 D. $37.75
Mathematics
Subtract.7 - 3.845
A. 3.155 B. 3.125 C. 3.156 D. 3.355
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Use the distributive property to write the sum as a product.20 ? 1 + 20 ? z
A. (20 + 20z) B. 21(z) C. (20z) D. 20(1 + z)
Mathematics